Wing nut



April 3, 1946. J. F. BALLAK 2,399,090

WING NUT Filed March 29, 1945 Fl G .11.. I INVENTOR.

JOHN F. BALLAK Patented Apr. 23, 1946 WING NUT John I". Ballak, St.Louis, Mo. Application March 29, 1915, Serial No. 585,409

2Claims.

This invention relates to wing nuts, and particularly to such a nutformed of an integral piece of any suitable material which is capable ofbeing bent into shape. Its construction is such as to preclude anypossibility of its parts being accidentally pried apart so that itseiiiciency would be impaired, since it has members integrally formedtherewith to hold the structure firmly in its completed form, and inthis respect it differs from other integrally formed devices of thiskind heretofore known. My new wing nut is simple, durable, and itsproduction requires a minimum or time and expense.

In the drawing- Fig. 1 is a perspective view illustrating the wing nutin its completed form.

Fig. 2 illustrates the blank as it appears when stamped terial.

Fig. 3 illustrates tions threaded.

Fig. 4 is a top plan in Fig. 3.

Fig. 5 is a sectional view taken on line 5-5, Fig. 3, particularlyillustrating the threaded portions of the blank.

Fig. 6 is a front elevation of the blank partially bent into positionwith its threaded portions at a right angle to each other.

Fig. '1 is a side elevation trated in Fig. 6.

Fig, 8 is a front elevation of the wing nut with all its parts bent intotheir permanent positions.

Fig. 9 is a top plan view of the wing nut illustrated in Fig. 8. 1

Fig, 10 is a side elevation of the wing nut illustrated in Fig. 8.

Fig. 11 is a sectional view taken on line I I-I I, Fig. 8, illustratingparticularly the retaining members.

The invention comprises a blank stamped out of a piece of any suitablematerial, preferably a metal that can be bent and will retain its bentshape. The blank is provided with a centrally positioned elongated slotI, and at each side the blank terminates in a wing 2, said wings beinspaced apart from the upper portion of the blank, as shown at 3. At itsupper edge the blank has at its central portion a projection 4 extendingupwardly a slight distance beyond said upper edge, and at its lower edgethe blank has a pair of downwardly extending lugs 5, the space betweenthe lugs 5 being equal to the width of the projection l and to thelength of the elongated slot I, and the width or the lugs 5 being equalto the length for the wing nut from a piece of mathe blank with itscentral porview of the blank as shown of the blank illusof the section 6of the blank at each side of the projection 4. When the above describedblank has been stamped out, its center section, which embraces thatportion of the blank lying between the upper edge of the projection 4down to the space between the lugs 5 and includes the elongated slot I,is bent to form an elongated, semi-tubular portion I (Figs. 3 and 4),and with a suitabl tool or die threads 8 are pressed into said portion1, and as will be observed from Fi 3. one-half of the screw-threadedportion 1 will lie above and the otherhalf below the elongated slot I.

The blank is then bent along a horizontal line extending from the centerof the elongated slot I to the space 3, until the upper half of thescrew threaded portion 1 and its adjacent sections 6 are positioned at aright angle to the lower half of said screw-threaded portion. The lugs 5are then bent upwardly toward the upper half of the screwthreadedportion 1 until said lugs are also positioned at a right angle to thelower half of said screw-threaded portion. The blank is now in theposition shown in Figs. 6 and 'l.

The bending sections 6 in the upper half of the blank adjacent the upperhalf of the screw-threaded portion 1 lie against the lower section ofthe blank adjacent the lower half of the screw-threaded portion 1. It 30will be remembered that the elongated slot I was included in thatsection of the blank which forms the semi-tubular portion 1, so that theupper and lower edges of said slot were simultaneously bent intosemi-circular shape, and it will be clearly seen that as the upper andlower halves of the semi-tubular portion 1 are bent toward each other asabove described. the semi-circular edges of the slot I will spreadfarther apart at their centers, until when the upper and lower halves ofthe blank rest against each other, said semi-circular edges will form acircle, and this circle will be the upper edge of an interiorlyscrew-threaded, tubular member formed by the two halves of thesemi-tubular portion 1. The lugs 5 are then bent upwardly until theyrest against the downwardly bent sections 8, so that said lugsconstitute retaining members to hold the parts firmly in the positionsinto which they have been bent, and the wings I provide convenientmembers for grasping the wing nut when it is being operated.

From what has been said above, it will be seen that my wing nut whencompleted is of light weight, which is an advantage when it is handledin quantities. Also, it is obvious that there is no limitation as to thedepth of the screwthreads of the blank is continued until the 1 whichare formed in the tubular member I, but these may be as deep or asshallow as the particular use to which the wing nut is to be putrequires. v

Iolaim: a v

1. The method or producing a wing iiifi which I comprises stamping iroma piece of material a ieotions rest against the downbeat portion 0! saidintermediate section to hold tion.

said m in D081- 2. The method oi producing 'a wing nut provided withsingle ply grasping members. which comprises stamping from a piece ofmaterial a blank provided with an elongated aperture, said blank havinga pair of peripheral projections at its side edges partially spaced awayfrom the intermediate portion of said blank and a Pair of downwardlyextending projections at its bottom ledge, forming identical,screw-threaded semi-tuu aperture. bending said intermediate section ofthe blank along the axis of said aperture to form a tubular member fromsaid semi-tubular porticns, and then bending said downwardly eztend= ingprojections upward on a line in the same plane as the bottom edge or theblank until said projections rest against the downbent portion oi saidintermediate sectionto hold said parts in D 1 JOHN 1". BALLAK.

portions above and below said elongated

